[Boost-users] Constructing a shared pointer from a const pointer

Subject: [Boost-users] Constructing a shared pointer from a const pointer
From: veerus (veeranjaneyulu.sadhanala_at_[hidden])
Date: 2009-11-11 01:41:17

Hi All,

I have been in trouble for a day solving this seemingly simple problem -
constructing shared_ptr<X> from const X& without copying the X object.

The programming logic does not allow me to construct the shared_ptr like
this: SX x = SX( new X( x ) );

Consider the following piece of code:

void foo( const X& x )
{
  typedef shared_ptr<X> SX;
  SX px = SX( &x );

  bar( px );
}

The compiler gives the following error: 
In shared_ptr.hpp at line 184: 'initializing' cannot convert from 'const X
*' to 'X*'.

Please suggest any procedure to solve this problem.

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